Cusco, I read your post as berrating those who did not identify the field at all in the transmission - as highlighted in your post. Sorry, I missed the point about adding it at the end also.
Nonetheless, I too have heard undisciplined and unidentified broadcasts which far from helping the situation can do more to confuse - adding the airfield name would undoubtedly help!
I'm puzzled though that you think that CAP 413 suggests addind 'traffic' to the airfield name - I read it as a procedure that is applied if one chooses to use Safetycom.
And as for the pilot who refuses to use Safetycom, the procedures in CAP 413 clearly make it a facility that is available rather than one that is mandatory - he/she is quite within their rights, if unhelpful and potentially foolhardy.